How to find vacant properties and reach owners who want out

How many vacant homes are really out there

You do not need to find 15 million vacant homes. You need the few dozen in your target area whose owners would take a cash offer. The distance between those two numbers is where most vacant-property advice falls apart, and it is why people burn months working a list that was never as large as the headline promised.

Get the real picture first, then the method to work it. The plan below moves from the scalable data signals that build a list fast, to the physical checks that confirm it, to the owner lookup and the outreach. Work it in that order and you spend your skip-trace and postage budget only on addresses that have already earned it.

The number everyone gets wrong

The U.S. Census Housing Vacancy Survey counted 15.6 million vacant housing units in the second quarter of 2026, about 10.5% of all units. Nearly every "find vacant homes" article quotes some version of that and stops. It is the wrong number to chase.

Pull it apart. That 10.5% includes 3.4 million seasonal and vacation homes, plus everything sitting empty between renters; the rental vacancy rate by itself was 7.3%. The figure that describes owner-type homes actually standing empty, the homeowner vacancy rate, was 1.2%. Measuring differently, ATTOM found 1.36 million vacant residential properties in the third quarter of 2026, out of 104.6 million, which is 1.3%.

So the investable pool is not 10.5% of homes. It is closer to 1.3%. In a ZIP with 8,000 houses, that is roughly 100 genuinely vacant ones, and only a slice of those owners want to sell. Chase the 15-million number and you get a bloated list stuffed with vacation condos. Chase the 1.3% and you get a working list.

How the USPS vacant flag really works

The single best vacancy signal is the mail. When an urban-route carrier sees mail uncollected at an address for 90 days or longer, the USPS marks it vacant. Rural addresses empty that long, homes under construction, and addresses a carrier judges unlikely to be active get a separate "no-stat" code. HUD receives this data aggregated every quarter.

Now the part the how-to lists skip. You cannot download it. HUD restricts the raw USPS vacancy dataset to governmental entities and registered non-profits, so investors get the flag secondhand, baked into the feeds that vendors like PropStream and BatchData license. When a tool shows you a "vacant" tag, that is usually the USPS 90-day flag passed through, not an inspector the vendor sent. Knowing the source tells you its limits. It can lag by up to a quarter, so a house that went empty last month will not show yet.

The signals that actually mean vacant

No single signal is proof. Stack them. Each one below raises the odds, and two or three together make an address worth an owner lookup.

The physical cues at the bottom are the slowest to collect and the most current. The data signals at the top scale but lag. A good list is built by pulling the scalable signals first, then confirming the promising addresses with a drive-by or a street-view check before you spend a stamp on them.

The public records that build the list

Three public sources do most of the list-building, and all three are free at the county or city. Tax-delinquent rolls come from the county tax collector, usually as a downloadable list or a public-records request; an owner two years behind on taxes on an empty house is one of the most motivated sellers you can find. Code-enforcement liens and open violations come from city code enforcement, and a stack of mowing and boarding citations means nobody is home while the fines climb. Probate filings from the clerk of court surface inherited houses that heirs frequently do not want, many of them vacant since the prior owner passed.

Then cross-reference. An address that lands on the tax-delinquent list, carries the USPS vacant flag, and shows an open probate case is not a maybe. That is your first call.

Utility shutoff data is the hardest of these to get and the most decisive when you can. A house with the water or power disconnected is empty in a way an overgrown yard only hints at. Some municipalities release delinquent-utility or shutoff lists through a public-records request; many refuse on privacy grounds. It is worth one request to your city to learn which camp yours is in, because if the answer is yes, you hold a signal almost no competitor is working.

Driving for dollars: what to photograph

Driving for dollars still works because it catches what the data misses: the house that emptied last month and has not tripped the 90-day USPS flag yet. Drive your target streets and photograph the specific things that mean empty, not merely ugly. Mail spilling from the box or piled on the porch. Uncut grass in growing season. Flyers stacked at the door. Notices taped to the glass. Windows boarded or curtained solid. A garage you can see straight through with nothing in it.

Log the address the second you spot it. Skip the houses that are dated or unkempt but clearly lived in. A tired house with a car in the driveway is not a vacant lead, and chasing it burns the same skip-trace credit a real one would.

From address to owner: skip tracing

A vacant house with no owner attached is not a lead. The owner is rarely standing in the empty house waiting for a knock; they are somewhere else, which is the entire point of the property being vacant. Skip tracing turns the address into a phone number and a mailing address that reaches a real person.

Start free with the county property appraiser, which lists the owner of record and the mailing address on the tax bill. When that mailing address differs from the vacant house, you have both a confirmation the owner lives elsewhere and a place to send mail. If the mailing address dead-ends, a paid skip trace runs the owner's name against phone and address databases. Expect a hit rate well short of 100%, and expect some numbers to be wrong or disconnected, which is why a letter to the confirmed mailing address is often the higher-percentage first touch than a cold call.

Budget for the miss rate. If a skip trace returns three possible numbers for an owner, plan to try all of them and still land on a voicemail or a wrong person most of the time. That is why volume matters: a 200-address vacant list at a realistic contact rate still yields a workable handful of conversations, while a 20-address list can go cold. The channel you pick also carries legal weight. The FTC's telemarketing rule requires callers to scrub their lists against the National Do Not Call Registry at least every 31 days, and that registry covers phone calls, not mail. A letter to the confirmed owner address sidesteps the registry entirely, one more reason mail is the safer first touch to a vacant owner. None of this is legal advice, and outreach rules vary by state, so check your state's telemarketing and solicitation rules before you dial.

Which vacant owners are actually motivated

Vacant does not mean for sale. Sort your list by why the house is empty, because the reason predicts whether the owner will deal and tells you how to write the message. An out-of-area heir who inherited a house they never wanted is a strong lead; the property is a chore and a tax bill, not a home. A tired landlord whose rental has sat empty since the last tenant wrecked it is a strong lead; they are done. An absentee owner two years tax-delinquent is often gone and short on cash.

The weak leads are the seasonal owner, that vacation condo hiding inside the 10.5% number, and the owner mid-renovation who fully plans to move back in. You cannot know for certain which is which until you make contact, but the record hints hard: a probate case, an out-of-state mailing address, and tax delinquency each point toward the motivated end of the list. Rank by those before you rank by anything else.

Keep the list fresh, or it rots

A vacant list decays fast. The USPS flag lags a quarter, houses sell, owners finally make repairs, and probate cases close. A list you pulled in January is stale by spring. Rebuild the scalable part monthly: re-pull the tax-delinquent roll after each county installment deadline, re-check code enforcement for new violations, and refresh the vendor's vacant flag. Keep the drive-by log rolling as you work neighborhoods, since your own eyes are the one source that catches a house the week it empties.

Deduplicate every rebuild against what you have already mailed. An owner who gets three identical letters in three months reads you as a nuisance, not a buyer. Track the date and the piece of every touch so the second letter can reference the first, and the message moves forward instead of repeating itself.

How to reach them, and what to do next

Once you have vacant houses tied to real owners, the deal comes down to who reaches them first and how many you can reach. Mail beats a cold call here for two reasons: the owner is not at the vacant house to answer a door, and a letter to a confirmed out-of-area mailing address does not depend on a skip-traced phone number being correct.

You can run the whole thing by hand. Pull the county lists, drive the streets, skip trace, and mail the winners yourself, which is the right move when your farm is one neighborhood and your list is short. When it is a whole ZIP, scoring beats sorting by hand. Farmrix ranks every owner in a market by how likely they are to sell in the next 6 to 12 months, folds the vacancy and distress signals into that score, and mails postcards to the top of the list, so the empty houses whose owners are ready rise up instead of you eyeballing 8,000 parcels. A 500-owner, 500-postcard campaign starts at $1,195. Whatever tool you pick, the order never changes: find the empty house, confirm it, attach the owner, then mail the ones most likely to say yes.